diff --git a/google-cloud-metastore-v1/proto_docs/google/api/client.rb b/google-cloud-metastore-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-metastore-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-metastore-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-metastore-v1beta/proto_docs/google/api/client.rb b/google-cloud-metastore-v1beta/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-metastore-v1beta/proto_docs/google/api/client.rb
+++ b/google-cloud-metastore-v1beta/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-migration_center-v1/proto_docs/google/api/client.rb b/google-cloud-migration_center-v1/proto_docs/google/api/client.rb
index 97193034f37c..f20af9485bd9 100644
--- a/google-cloud-migration_center-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-migration_center-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-monitoring-dashboard-v1/proto_docs/google/api/client.rb b/google-cloud-monitoring-dashboard-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-monitoring-dashboard-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-monitoring-dashboard-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-monitoring-metrics_scope-v1/proto_docs/google/api/client.rb b/google-cloud-monitoring-metrics_scope-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-monitoring-metrics_scope-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-monitoring-metrics_scope-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-monitoring-v3/proto_docs/google/api/client.rb b/google-cloud-monitoring-v3/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-monitoring-v3/proto_docs/google/api/client.rb
+++ b/google-cloud-monitoring-v3/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-network_connectivity-v1/proto_docs/google/api/client.rb b/google-cloud-network_connectivity-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-network_connectivity-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-network_connectivity-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-network_connectivity-v1/proto_docs/google/rpc/error_details.rb b/google-cloud-network_connectivity-v1/proto_docs/google/rpc/error_details.rb
index d0a8bba79e9c..a5b5a593137e 100644
--- a/google-cloud-network_connectivity-v1/proto_docs/google/rpc/error_details.rb
+++ b/google-cloud-network_connectivity-v1/proto_docs/google/rpc/error_details.rb
@@ -302,17 +302,17 @@ class BadRequest
       #     In this example, in proto `field` could take one of the following values:
       #
       #     * `full_name` for a violation in the `full_name` value
-      #     * `email_addresses[1].email` for a violation in the `email` field of the
+      #     * `email_addresses[0].email` for a violation in the `email` field of the
       #       first `email_addresses` message
-      #     * `email_addresses[3].type[2]` for a violation in the second `type`
+      #     * `email_addresses[2].type[1]` for a violation in the second `type`
       #       value in the third `email_addresses` message.
       #
       #     In JSON, the same values are represented as:
       #
       #     * `fullName` for a violation in the `fullName` value
-      #     * `emailAddresses[1].email` for a violation in the `email` field of the
+      #     * `emailAddresses[0].email` for a violation in the `email` field of the
       #       first `emailAddresses` message
-      #     * `emailAddresses[3].type[2]` for a violation in the second `type`
+      #     * `emailAddresses[2].type[1]` for a violation in the second `type`
       #       value in the third `emailAddresses` message.
       # @!attribute [rw] description
       #   @return [::String]
diff --git a/google-cloud-network_connectivity-v1alpha1/proto_docs/google/api/client.rb b/google-cloud-network_connectivity-v1alpha1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-network_connectivity-v1alpha1/proto_docs/google/api/client.rb
+++ b/google-cloud-network_connectivity-v1alpha1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-network_security-v1beta1/proto_docs/google/api/client.rb b/google-cloud-network_security-v1beta1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-network_security-v1beta1/proto_docs/google/api/client.rb
+++ b/google-cloud-network_security-v1beta1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-network_services-v1/proto_docs/google/api/client.rb b/google-cloud-network_services-v1/proto_docs/google/api/client.rb
index a8b1b06d1cad..c58739e32368 100644
--- a/google-cloud-network_services-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-network_services-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-notebooks-v1/proto_docs/google/api/client.rb b/google-cloud-notebooks-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-notebooks-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-notebooks-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-notebooks-v1beta1/proto_docs/google/api/client.rb b/google-cloud-notebooks-v1beta1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-notebooks-v1beta1/proto_docs/google/api/client.rb
+++ b/google-cloud-notebooks-v1beta1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-notebooks-v2/proto_docs/google/api/client.rb b/google-cloud-notebooks-v2/proto_docs/google/api/client.rb
index 97193034f37c..f20af9485bd9 100644
--- a/google-cloud-notebooks-v2/proto_docs/google/api/client.rb
+++ b/google-cloud-notebooks-v2/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-optimization-v1/proto_docs/google/api/client.rb b/google-cloud-optimization-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-optimization-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-optimization-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-oracle_database-v1/proto_docs/google/api/client.rb b/google-cloud-oracle_database-v1/proto_docs/google/api/client.rb
index a8b1b06d1cad..c58739e32368 100644
--- a/google-cloud-oracle_database-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-oracle_database-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-orchestration-airflow-service-v1/proto_docs/google/api/client.rb b/google-cloud-orchestration-airflow-service-v1/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-orchestration-airflow-service-v1/proto_docs/google/api/client.rb
+++ b/google-cloud-orchestration-airflow-service-v1/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included
diff --git a/google-cloud-org_policy-v2/proto_docs/google/api/client.rb b/google-cloud-org_policy-v2/proto_docs/google/api/client.rb
index 7796382e3a21..e62ceba4577a 100644
--- a/google-cloud-org_policy-v2/proto_docs/google/api/client.rb
+++ b/google-cloud-org_policy-v2/proto_docs/google/api/client.rb
@@ -31,6 +31,8 @@ module Api
     # @!attribute [rw] selective_gapic_generation
     #   @return [::Google::Api::SelectiveGapicGeneration]
     #     Configuration for which RPCs should be generated in the GAPIC client.
+    #
+    #     Note: This field should not be used in most cases.
     class CommonLanguageSettings
       include ::Google::Protobuf::MessageExts
       extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -441,6 +443,8 @@ class LongRunning
 
     # This message is used to configure the generation of a subset of the RPCs in
     # a service for client libraries.
+    #
+    # Note: This feature should not be used in most cases.
     # @!attribute [rw] methods
     #   @return [::Array<::String>]
     #     An allowlist of the fully qualified names of RPCs that should be included